This question shall be answered by the analysis of some data from the application coin-doubler.

How does coin-doubler work

This application generates profits in the cryptoscene by using the most advanced technology and everybody can benefit from it by "donations". Donations to coin-doubler are rewarded with twice the amount in the same token over an unspecified period of time, also as a gift.

Evaluation of a randomly selected donation

The user naughty-nuclei has donated 90.000 STEEM to coin-doubler with this transaction 4277e1e587c96eb27dc8d179effef895e0da41e5 on 05/02/2025 UTC.

List of the gifts

The table below lists the corresponding gifts which the user naughty-nuclei has received from coin-doubler.

#	Date	Gift	TX
1	05/03/2025	2.936 STEEM	398dc2e66eed67d22e90cac35dc73d0f57298479
2	05/04/2025	2.782 STEEM	681d9b0961c894bc8275da653a631c4ab4fcea13
3	05/05/2025	3.057 STEEM	f5097281319469d19821c79ac7cfad73ca2e5b2f
4	05/06/2025	3.113 STEEM	0195636fc67f78556a564f0bbf7266429e000635
5	05/07/2025	2.970 STEEM	cc41732c2578afb37cbc491f2c8a93fe4cc318df
6	05/08/2025	2.768 STEEM	c7808fc15be3551d51808f2ada7bc8dda8289ef1
7	05/09/2025	2.864 STEEM	7fe6a65f208e3fd6865caa13c9b4c54b9452253a
8	05/10/2025	2.935 STEEM	8b5cfc9b6e162bc038fe88f019aae0f5cfd4b3d9
9	05/11/2025	3.206 STEEM	e13913ab67156aedf2c56be364200d38a0aed993
10	05/12/2025	3.361 STEEM	562f1f2e0256459f997772cd78befab373f0411f
11	05/13/2025	3.354 STEEM	79d2ae9e5bcf55271d1986699088434703d06f18
12	05/14/2025	3.346 STEEM	eb6be6d7ad813f5ea541f00ba45c9a012f808778
13	05/15/2025	3.050 STEEM	e6c7670d3596c8c84e761e2107c3e8649eb37417
14	05/16/2025	2.953 STEEM	48f0b69e9f279f5d009e6e29d8994b14dd7a8d73
15	05/17/2025	3.415 STEEM	fba5f76044ee1fa8c9ae8871929865ff8c0bff20
16	05/18/2025	3.123 STEEM	920bfe12f35c7829ef9c69deaebf045d7a029631
17	05/19/2025	3.187 STEEM	1ca2d3456dcd9b516eeb57eeecacb983584a5200
18	05/20/2025	2.701 STEEM	8a232924b3777716b893620583d262c6275c57a7
19	05/21/2025	2.846 STEEM	ed3460fd150c829cf5a5b5f00babba5992f8f9d6
20	05/22/2025	3.523 STEEM	713dcbc383b78114d26bc28217538bb5fe863e8e
21	05/23/2025	3.371 STEEM	a40edb5c4b5f2d39713b804b57afc3a3cc729aa2
22	05/24/2025	3.044 STEEM	5f81a6b205ade7b907ddf7e6ecd14caaf09b4fb5
23	05/25/2025	3.515 STEEM	6b09699a68c671d934d7108a37da5f739a82926d
24	05/26/2025	3.168 STEEM	704e1616d5d1d5c791a0f811aa14bbb497c0f13a
25	05/27/2025	2.876 STEEM	c801a23cc91ba054945da1d063414c028804f919
26	05/28/2025	2.711 STEEM	25078358c8e1828c8e38ea8961cd0af470afe50d
27	05/29/2025	2.911 STEEM	4135095bd2d41f8b386de571c019087cb713caaa
28	05/30/2025	2.842 STEEM	73794d904be14a40f7429d4b9498a3f9a786e924
29	05/31/2025	3.168 STEEM	08f5d313239c05db288fe7ada647f41ec7b40f36
30	06/01/2025	3.258 STEEM	5543a3b28666a6d7ec89bf8ef3e5a441e2f715de
31	06/02/2025	3.112 STEEM	28750c9ec547669e9a0edc0a440d579a3ffc3077
32	06/03/2025	3.149 STEEM	9efad6886426056f435b3109e99f6f87ee0cc75a
33	06/04/2025	2.943 STEEM	504d729fd4072267d24352eff567b57f6c76db57
34	06/05/2025	3.403 STEEM	9922f796f040b22b63ab405c1960ad415bb8d114
35	06/06/2025	2.887 STEEM	a4ddc7e54926db655f2c38ccf61d29421d26f62b
36	06/07/2025	3.479 STEEM	4bfe053a5781d1861e459a251dd6ee7bf12ce655
37	06/08/2025	3.431 STEEM	01cec767c20d570c060b3fbda33c25392e588758
38	06/09/2025	3.037 STEEM	3385461328a77590dfafb010c747a019d00c32b7
39	06/10/2025	3.116 STEEM	3ad7f17c1ace09f214c076410e94d19e9659003c
40	06/11/2025	3.267 STEEM	694494a46bdc721ae6dba6f758152a3aec862974
41	06/12/2025	3.332 STEEM	3da810de82fe150435c68c10c0f437ab983c221f
42	06/13/2025	3.411 STEEM	f09af488399dfe7677bd9823ce6dd997920f4f53
43	06/14/2025	3.537 STEEM	3929533d77af9b536059f3d4844fbc0c5a3c786a
44	06/15/2025	3.483 STEEM	02613c3aa81e08591edab2a43929272a773fce95
45	06/16/2025	3.594 STEEM	57c694fc3ecf1c564eddf5935b11ac98bf26d059
46	06/17/2025	3.487 STEEM	aefadd8e2b9cfe5866874897ebc2d8abeb6e3784
47	06/18/2025	2.798 STEEM	0bb16116b7732bdc655d908f3d26fd974df9aed1
48	06/19/2025	3.101 STEEM	8407fe0d5f64ab45ae3c6541bcaa439832cc0d0d
49	06/20/2025	3.464 STEEM	4c17352cf79b808c7af8386183a856a28ebc35b2
50	06/21/2025	3.395 STEEM	f2eb3f6a42d098c4167c39c58713818787159d49
51	06/22/2025	2.869 STEEM	c029f8a7400f99193593bf86ddba32d810aecc3d
52	06/23/2025	3.247 STEEM	f85f956e39f4680e2a7fccf0cf4410bfca8edda6
53	06/24/2025	3.034 STEEM	e15ae92bd6eb6e29e952ed4065bf653bd05dc78d
54	06/25/2025	3.581 STEEM	d4e708fb7c5aa85bb5a70a4e3159f39ba6a9cd49
55	06/26/2025	2.732 STEEM	e997cb387d2fd9fda688b7963656051c0bd6f916
56	06/27/2025	2.762 STEEM	b315a0bfaaa9566ffb3f096f0aefee81cd5ffaf7
57	06/28/2025	3.163 STEEM	3cebfc281c62552c9998fa9e73d319ff8f36a01a
58	06/29/2025	0.832 STEEM	55beb58a2937ae0facb8b2623e5df4a4f249d010

Total: 180.000 STEEM

Summary

The user naughty-nuclei has been rewarded with twice the amount of the "donation" within 58 days.

Technical Analysis for STEEM

As the application coin-doubler has the potential to attract numerous investors, STEEM's price is expected to rise.

Technical Analysis for STEEM crypto currency

Boost My Wealth Challenge

If you want to participate from the Steem ecosystem's success, you can do so right now by following a few simple steps.

All author reward from this account will be paid out for an indefinite period of time to 8 participants per comment as Beneficiary Reward.

You are the one who determines your success through your activities and your persistence!

Each of the following steps are evaluated, but aren't mandatory:

If you don't have an account yet, create one for free at Steemit, Inc.
Follow me.
Copy this link https://steemit.com/@abandi and invite your friends to the Steem Community via it on the social networks you use. Below is a template:
If you have been wondering where I have been spending most of my time lately, I'm studying the many opportunities to achieve my Financial Prosperity presented by https://steemit.com/@abandi, and I'm working through the given steps.
Share this post on the social networks you use.
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Upvote this post.
Comment at least once a week on this blog about your activities outside the Steem ecosystem that are related to the Steem.
Participate in voting for witnesses with the least amount of effort by setting abandi as proxy. Head to the Vote for Witness page. At the very bottom of the page you will see

Type in abandi and click "SET PROXY". Currently this account is voting for the following witnesses as they are the ones who can ensure the safe operation of the Steem blockchain: beargame, cryptoking777, dev.supporters, dlike, enjoylondon, exnihilo.witness, future.witness, hinomaru-jp, hoasen, inwi, juddsmith079, justyy, leverfile, maiyude, matreshka, menacamel, parse, protoss20, rlawlstn123, rnt1, roadofrich, roundblocknew, smt-wherein, steem-agora, steem-dragon, steem-supporter, steem.history, upeross and upvu.witness.
Invest for your bright future by buying some STEEM regularly and only selling some of the profit if necessary. (Think about the power of compound interest.)
Find an exciting post outside your circle of friends on Steem and comment, upvote, etc. it.
Use some of the various applications available on the Steem blockchain.
Head to the steemitblog to get to know other interesting activities within the Steem ecosystem, which can bring you additional rewards from the steemcurator01's upvotes.

Beneficiaries of this post

Following users will receive 12.5% from the Author Reward each: bendelta28, birds786, elenazaraaa, israels-blessing, lumen2025, misterakpan, trinasandi and xryptonsoul.

Information for beneficiaries, your Upvote on this post will earn you an additional 12.5% Beneficiary Reward to your Curation Reward.

Users on the radar for upcoming Beneficiary Rewards

Following users have also appeared on the radar: abcor, aks333, camicam, eugenio71, faithilyn, goldenpilot43, kar25, maxwellmarcusart, nityabusiness786, ond, saregama786, shyuan, stevenmarthin and yuly.villa.

The decision has been difficult as always, but maybe it will work out in the next rounds. You get mentioned so that you at least get the attention of the followers. You have contributed to the Steem ecosystem's success as well, thank you.